Multi-factor based power distribution network failure recovery method

Abstract

The invention discloses a multi-factor based power distribution network failure recovery method. A recovery scheme is optimized by calculating primary transfer index, secondary transfer index and load shedding gross of a power-off area feeder line. The load fluctuation of a distribution network, the spare power automatic switching transfer of a dual-power use and the influence of whether a switch is additionally provided with a remote device on multiple factors such as failure recovery time consumption are sufficiently taken into account, trial and preferential schemes such as primary transfer, secondary transfer and primary transfer after partial load shedding are carried out in sequence in combination with distribution network topology by using distribution network load prediction data, and a reasonable and convenient failure recovery method is found out, so that the objectives of shortening distribution network failure recovery time and reducing load loss to the maximum extent are realized.

Description

technical field [0001] The invention relates to a multi-factor-based distribution network fault recovery method, which belongs to the technical field of distribution network scheduling and operation and maintenance. Background technique [0002] As the final link of the power grid to the user, the distribution network directly affects the normal production and living order of the society. When a fault occurs in the distribution network, the dispatcher, operation and maintenance personnel should quickly and effectively formulate and implement a load transfer plan, and restore power supply in non-fault outage areas as much as possible without causing system safety violations. In the field of distribution network fault power supply restoration, relevant experts and scholars have proposed a large number of optimization algorithms, but these methods have shortcomings: First, they often only transfer power to the section load at the moment of fault occurrence or the maximum load v...

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Problems solved by technology

In the field of distribution network fault power supply restoration, relevant experts and scholars have proposed a large number of optimization algorithms, but these methods have shortcomings: First, they often only transfer power to the section load at the moment of fault occurrence or the maximum load value in a certain period of time, and The time-varying fluctuation characteristics of distribution network power flow are not considered; the second is that the impact of dual power supply users' internal backup and self-switching on the load of adjacent feeders is not considered; the third is that whether the contact / section switch is equipped with a remote control time impact

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